在erb文件中使用if语句

Question

我是Ruby on Rails的新成员，正在构建一个论坛的示例项目。我尝试设置一个可以删除其他管理员的超级管理员。但总是不能通过规范。

这里是我的代码 的意见/用户/ _user.html.erb

<li> 
<%= gravatar_for user, size: 52 %> 
<%= link_to user.name, user %> 
<% if (current_user.admin? && !current_user?(user) && !user.admin?) || current_user.sadmin? %> 
| <%= link_to "delete", user, method: :delete, 
       data: { confirm: "You sure?" } %> 
<% end %> 
</li> 

规格/请求/ user_page_spec

describe "delete links" do 

    it { should_not have_link('delete') } 

    describe "as an admin user" do 
    let(:admin) { FactoryGirl.create(:admin) } 
    before do 
     sign_in admin 
     visit users_path 
    end 

    it { should have_link('delete', href: user_path(User.first)) } 
    it "should be able to delete another user" do 
     expect do 
     click_link('delete', match: :first) 
     end.to change(User, :count).by(-1) 
    end 
    it { should_not have_link('delete', href: user_path(admin)) } 
    end 

    describe "as an sadmin user" do 
    let(:sadmin) { FactoryGirl.create(:sadmin) } 
    let(:admin) {FactoryGirl.create(:admin)} 
    before do 
     sign_in sadmin 
     visit users_path 
    end 

    it { should have_link('delete', href: user_path(User.first)) } 
    it "should be able to delete another user" do 
     expect do 
     click_link('delete', match: :first) 
     end.to change(User, :count).by(-1) 
    end 
    it { should have_link('delete', href: user_path(admin))} 
    it { should_not have_link('delete', href: user_path(sadmin)) } 
    end 
end 
end 

，当我尝试运行规范的错误是

1) User pages index delete links as an sadmin user 
    Failure/Error: it { should_not have_link('delete', href: user_path(sadmin)) } 
     expected #has_link?("delete", {:href=>"https://stackoverflow.com/users/422"}) to return false, got true 
    # ./spec/requests/user_pages_spec.rb:66:in `block (5 levels) in <top (required)>' 

    2) User pages index delete links as an sadmin user 
    Failure/Error: it { should have_link('delete', href: user_path(admin))} 
     expected #has_link?("delete", {:href=>"https://stackoverflow.com/users/423"}) to return true, got false 
    # ./spec/requests/user_pages_spec.rb:65:in `block (5 levels) in <top (required)>' 

我不确定它是否意味着我在erb文件中使用的语法是错误的或者其他一些东西我乱编辑？在此先感谢

Answer 1

在

<% if (current_user.admin? && !current_user?(user) && !user.admin?) || current_user.sadmin? %> 
     | <%= link_to "delete", user, method: :delete, 
       data: { confirm: "You sure?" } %> 
    <% end %> 

，意味着如果“current_user.sadmin？”为真，链接将显示无论其他条件。所以疗法是失败

Failure/Error: it { should_not have_link('delete', href: user_path(sadmin)) } 
     expected #has_link?("delete", {:href=>"https://stackoverflow.com/users/422"}) to return false, got true 

我猜

it { should have_link('delete', href: user_path(admin))} 

失败，是监守管理员用户在

it "should be able to delete another user" do 
     expect do 
     click_link('delete', match: :first) 
     end.to change(User, :count).by(-1) 
    end 

部分被删除了？